Energy can be given in different units. a) How many joules (J) are in a kilojoule (kJ) Enter number b) What is 2500 JinkJ? Enter number kJ

a:【Explanation】: This question pertains to the relationship between Joules (J), which is a unit measurement for energy in the International System of Units, and Kilojoules (kJ). The "kilo" prefix in kilojoules is derived from the Greek word for "thousand." Therefore, according to this terminology, there are 1000 Joules in 1 kilojoule. Let's denote the J and the kJ for Joules and Kilojoules, respectively. This implies. 【Answer a】: Therefore, in a kilojoule, there are 1,000 Joules.Answer b:【Explanation】: In this part of the problem, we are asked to express an energy figure, already given in Joules, in Kilojoules. As explained previously, the relationship between Joules and Kilojoules is Hence, to transform from Joules to Kilojoules we learn to divide by 1,000 (since there are 1,000 Joules in a Kilojoules). Hence, 2500 Joules will convert to Kilojoules by applying the following formula: 【Answer b】: Therefore, is equal to